Antagonistic activity of Trichoderma viride isolate on soil borne plant pathogenic fungi

The in vitro studies on the antagonism of Trichoderma viride on pathogenic fungi, viz., Fusarium s p ., Curvularia sp ., Rhizopus sp ., Aspergillus niger, A. flavus and A. fumigatus were carried out to test the ability of the antagonist fungi in inhibiting the growth of the experimental plant pathogens. The results of the activity assay of crude extracts of the antagonistic fungi Trichoderma viride at different concentrations on the radial mycelial growth and percent radial mycelial growth inhibition of different pathogenic fungi significantly varied among crude extract concentrations of the antagonist fungi and in between the plant pathogens. Further evaluation of Trichoderma bio-control potential in field condition was recommended.